My son took this picture on Friday afternoon east of Menominee on the way towards Escanaba along M-35 right along Lake Michigan. Saw several batches of these (yes, they are bugs), and I'd like to know what kind of bugs. Too cold for Mayflies I think, and not the right color? Mostly I drove under them, but some did hit the window that were lower. I originally thought someone was burning something and we were going to drive through smoke, that's how thick these were.